Multi-Direction Connector Coupling for Vibration-Resistant Locking

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Solution Overview

Problem

Existing electrical connectors in automotive applications are prone to disconnection due to vibrations and external forces, leading to reliability issues and potential damage.

Innovation Solution

An electrical connector design featuring a coupling element with flexible protuberances in multiple directions, which penetrates a receptacle to secure the connection, enhancing resistance to vibrations and forces while simplifying production and reducing parts, and includes a central portion with additional protuberances for improved reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If traditional blocking elements are used to limit connector movement, then connection stability is improved, but the connector becomes more complex and uses more parts

Engineering Contradiction:
Improveconnection stabilityVSAvoidconnector complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The coupling element integrates multiple functions into a single component: it provides blocking elements for movement limitation, includes flexible portions for vibration absorption, and serves as a structural connector. This merging eliminates the need for separate parts while maintaining connection stability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The coupling element is designed as a multi-functional component that simultaneously performs blocking, flexible adaptation, and structural support functions. The single element replaces what would traditionally require multiple separate components, reducing overall device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If rigid blocking elements are used to prevent connector disconnection, then connection reliability is improved, but resistance to vibrations deteriorates

Engineering Contradiction:
Improveconnection reliabilityVSAvoidvibration resistance
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The coupling element incorporates flexible portions that can deform under vibrational stress, allowing the connector to absorb vibrations while maintaining the blocking function. This flexibility prevents damage from vibrations while preserving connection reliability.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The blocking elements are designed with variable properties - rigid enough to prevent disconnection but flexible enough to absorb vibrations. The material or structural parameters are optimized to balance these opposing requirements, allowing the same element to provide both reliability and vibration resistance.

Inventive Principle:
Principle #35Parameter changes

3Object-affected harmful factors

If multiple blocking elements are added in different directions, then vibration resistance is improved, but device complexity increases

Engineering Contradiction:
Improvevibration resistanceVSAvoidconnector complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Multiple blocking elements in different directions are integrated into a single coupling element structure. The element extends in multiple directions with protuberances that provide blocking functionality without requiring separate components for each direction.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The coupling element serves as a universal component that provides blocking functionality in multiple directions simultaneously. This single multi-directional element replaces what would traditionally require multiple separate blocking elements, reducing complexity while maintaining vibration resistance.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Object-affected harmful factors

If flexible portions are added to the coupling element, then vibration resistance is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvevibration resistanceVSAvoidmanufacturing simplicity
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The flexible portions are designed by modifying the geometric or material parameters of the coupling element in a way that can be achieved through standard manufacturing processes. The flexibility is built into the design through parameter optimization rather than requiring complex additional manufacturing steps.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The design significantly improves the connector's resistance to vibrations and external forces, ensuring a more reliable connection by limiting movement and preventing damage from incorrect handling, while maintaining a compact and simpler structure.

Implementation Method 1

the coupling element has: at least one first protuberance in a first direction YY' perpendicular to the direction of introduction ZZ'; at least one second protuberance in a second direction XX'

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4369528A1Connector with a coupling element having two protuberances
Publication Date: 2024.05.15 APTIV TECHNOLOGIES AG
  • EP4369528A1 patent drawingFigure 1~2
  • EP4369528A1 patent drawingFigure 3~4
  • EP4369528A1 patent drawingFigure 5~6

AI summary

Electrical connector (20) which is designed to be connected and coupled in a direction of introduction (ZZ') to a corresponding electrical connector, the electrical connector (20) having a coupling element (21) extending at least in the direction of introduction (ZZ'); and wherein the coupling element (21) has: - at least one first protuberance (21p) in a first direction (YY') perpendicular to the direction of introduction (ZZ'); - at least one second protuberance (21pp) in a second direction (XX'), perpendicular to the first direction (YY') and to the direction of introduction (ZZ').